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50778205404461 = 113449364649597
BaseRepresentation
bin10111000101110101110001…
…11001010011110100101101
320122210100102102220211121022
423202322320321103310231
523123422231040420321
6255555104023543525
713460414160261233
oct1342727071236455
9218710372824538
1050778205404461
11151a7a09190657
1258411a62baba5
132244497277872
14c7796d1ba953
155d0cce898dab
hex2e2eb8e53d2d

50778205404461 has 4 divisors (see below), whose sum is σ = 51227570054172. Its totient is φ = 50328840754752.

The previous prime is 50778205404359. The next prime is 50778205404503. The reversal of 50778205404461 is 16440450287705.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6186114096100 + 44592091308361 = 2487190^2 + 6677731^2 .

It is a cyclic number.

It is not a de Polignac number, because 50778205404461 - 222 = 50778201210157 is a prime.

It is a super-2 number, since 2×507782054044612 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50778205401461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224682324686 + ... + 224682324911.

It is an arithmetic number, because the mean of its divisors is an integer number (12806892513543).

Almost surely, 250778205404461 is an apocalyptic number.

It is an amenable number.

50778205404461 is a deficient number, since it is larger than the sum of its proper divisors (449364649711).

50778205404461 is a wasteful number, since it uses less digits than its factorization.

50778205404461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449364649710.

The product of its (nonzero) digits is 7526400, while the sum is 53.

The spelling of 50778205404461 in words is "fifty trillion, seven hundred seventy-eight billion, two hundred five million, four hundred four thousand, four hundred sixty-one".

Divisors: 1 113 449364649597 50778205404461